Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

28th November 2019

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
17 students study Spanish and 5 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Histograms2 marks
A histogram class is 10 units wide and contains 30 values. Work out the frequency density.
3
Standard Form2 marks
Work out (4 x 10^5) x (6 x 10^-3). Give your answer in standard form.
4
Quadratic Formula3 marks
Work out the discriminant of 3x^2 - 4x + 4 = 0 and say how many real solutions it has.
5
Repeated Percentage Change3 marks
A town's population is 18500 and grows by 8% each year. Work out the population after 5 years, to the nearest whole number.

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